How to Choose MOC Building Blocks: A Practical Guide for Builders
MOC building blocks open the door to a hobby with no instructions and no limits. You design. You build. You display whatever you imagine. This guide answers the key questions directly — what they are, how to judge quality, fair pricing for ninja-themed sets, and how to start your first build.

In this guide:
- What are MOC building blocks — and how they differ from regular sets
- Self MOC vs. kit MOC — two paths explained
- 3-step framework: goal, compatibility, skill level
- 4 quality checks: material, clutch, print accuracy, replacement policy
- Moc ninjago building blocks price benchmarks and cost-per-piece math
- 5-step first build walkthrough
- Self-design method: references, digital tools, modular builds
- 6 common mistakes and a 6-point buyer checklist
What Are MOC Building Blocks?
MOC stands for "My Own Creation." What are MOC building blocks? They are construction bricks used to build original designs rather than following an official, pre-set model. Some builders start from scratch. Others modify existing sets into something new.
✦ Self MOC Building Blocks
You design the model yourself, brick by brick. Full creative control — no instructions, no limits.
◆ MOC Kits
A designer creates a custom model and packages the parts and instructions. You build someone else's original design.
Both paths use the same standard-size bricks. That standard means parts from different sources usually snap together, so your collection grows over time. MOC building is popular with adults looking for a relaxing, screen-free hobby, teens, collectors chasing display pieces, and parents seeking STEM-friendly activities.
How to Choose the Right MOC Building Blocks
Step 1 — Define Your Goal
Your goal shapes every other choice. Write it down before you browse.
Display piece
Prioritize detail and high piece count
Play and rebuild
Prioritize durability and loose-part variety
Gift for a teen
Match theme to interests — ninja, vehicles
First build ever
Start with a kit, not a blank pile of bricks
Step 2 — Check Brick Compatibility
Compatibility is the foundation of MOC building. Standard bricks measure the same across most major brands — parts interlock cleanly. Before buying, confirm the bricks use the universal stud size. Mixed collections are normal. Most builders combine parts from several sources. Browse compatible options at Morebybourn products to start a collection that grows with you.
Step 3 — Match Difficulty to Skill
| Piece Count | Skill Level | Typical Build Time |
|---|---|---|
| Under 500 pieces | Beginner | One afternoon |
| 500 – 2,000 pieces | Intermediate | A weekend |
| 2,000+ pieces | Advanced | Several sessions |
For self MOC building blocks, start smaller. Designing your own model is harder than following instructions. A modest first project teaches you how parts connect before you attempt anything ambitious.
How to Evaluate Brick Quality Before You Buy
Quality decides whether your build feels solid or falls apart. Use these four checks every time.
Material
Look for ABS plastic. It's durable, holds color well, and resists cracking. Cheaper bricks sometimes use softer plastics that warp or snap.
Clutch Power
Clutch power is how firmly bricks grip each other. Strong clutch means your model stays together. Weak clutch means pieces pop off. Rely on reviews and reputable sellers.
Print and Color Accuracy
Minifigure faces, ninja masks, and decorative tiles should have crisp, aligned printing. Blurry or off-center prints look cheap and ruin display quality.
Replacement Policy
Missing a piece? Reputable stores replace it free. Confirm the replacement policy before you order. It separates serious sellers from the rest.
Understanding MOC Pricing
Price varies widely. Anchor your expectations with real benchmarks.
What Drives the Price
- Piece count — more bricks, higher cost
- Specialty parts — printed tiles, gears, and motors add to the total
- Model complexity — detailed designs cost more to produce
- Licensing and design work — custom MOC kits include designer fees
Ninja-Themed Pricing Benchmarks
The moc ninjago building blocks price typically ranges from around $25 for small character sets to $150 or more for large vehicles, dragons, and temple builds. Use this as a guide, not a rule. Compare piece count to price — divide cost by piece count for a quick value test.
~$25
Small character sets
Under 300 pieces
$40 – $80
Medium vehicles / temples
300 – 800 pieces
$90 – $150+
Large dragons / sets
800+ pieces
Hidden Costs to Watch
Shipping
Heavy brick sets can cost a lot to ship. Look for free shipping offers.
Customs and duties
Cross-border orders sometimes add fees at delivery. Buyers in Europe should confirm whether the seller covers these.

A complete pre-purchase checklist workspace — six criteria every MOC buyer should verify before ordering.
How to Start Your First MOC Build
You have chosen your bricks. Now build. Follow these five steps.
Sort Your Pieces
Separate bricks by color, size, and type. Use small bowls or a parts tray. Sorting saves hours during the build and makes designing far easier.
Plan Before You Build
For a kit, read the instructions fully first. For a self-designed model, sketch your idea or use free digital design software. Planning prevents the frustration of dismantling half your work.
Build the Core Structure
Start with a stable base. Strong foundations stop tall models from wobbling or collapsing. Add detail only after the frame holds together.
Add Detail and Refine
Swap parts, test colors, and adjust shapes. With self MOC building blocks, this stage is the heart of the hobby. There is no wrong answer — only your design.
Share and Display
Photograph your finished model. Post it in online builder communities. Sharing brings feedback, ideas, and motivation for your next project.
How to Design Self MOC Models From Scratch
Ready to design your own? Self MOC building blocks give you total freedom, but a method helps.
Use Reference Images
Pick a subject — a vehicle, a building, a character. Gather photos from multiple angles. References keep your proportions accurate.
Try Digital Design Tools
Free brick-design software lets you build virtually before buying parts. You test ideas, generate a parts list, and avoid wasting money on bricks you don't need.
Build in Sections
Break complex models into smaller modules. Build each section, then connect them. This approach is easier to manage and easier to fix.
Keep a Spare Parts Stash
Designers rely on extra bricks for experiments. A varied parts collection is your toolkit. Explore brick variety at Morebybourn to build a flexible starter collection.
Common Mistakes to Avoid
| Mistake | Fix |
|---|---|
| Buying the biggest set first | Start smaller — build skill before scale |
| Ignoring compatibility | Confirm the universal stud size before ordering |
| Choosing price over quality | Balance cost and ABS durability |
| Skipping the replacement policy | Always check how the seller handles missing pieces |
| Building without sorting | Sort by color, size, and type before you start |
| Forgetting shipping and customs | Factor total cost, not just the sticker price |
Quick Buyer Checklist
Tick all six before every purchase and you're ready to buy with confidence.
Goal defined: display, play, or gift
Bricks confirmed as ABS and standard-size
Piece count matched to skill level
Price compared by cost-per-piece
Replacement policy confirmed
Shipping and customs costs checked
Ready to Start Your First MOC Build?
Browse MOC-compatible brick sets at Morebybourn — ABS quality, free replacement on missing pieces, and full brick compatibility guaranteed.
Frequently Asked Questions
What are MOC building blocks, and how are they different from regular sets?+
MOC stands for My Own Creation. What are MOC building blocks? They are standard-size bricks used to build original or custom models instead of following a fixed official design. Regular sets give you one outcome. MOC building lets you design your own model or build a custom kit made by an independent designer. The bricks use the same universal stud size, so they are fully compatible with parts from other major brands.
Are MOC building blocks compatible with major brick brands?+
Yes, in most cases. Quality MOC bricks use the universal stud standard, so they connect with parts from other major brands. Always confirm the brick standard before buying, especially when mixing parts from different sources.
How much should I expect to pay for ninja-themed sets?+
The moc ninjago building blocks price generally runs from about $25 for small character packs to $150 or more for large dragons, vehicles, and temple builds. Compare cost to piece count to judge value. Divide the total price by the piece count for a quick cost-per-piece comparison.
Can a complete beginner design their own MOC model?+
Absolutely. Start small with self moc building blocks and a simple subject. Use reference photos and free digital design software to plan first. Build the core structure before adding detail. Most beginners create a satisfying first model within a weekend.
What happens if my set arrives with missing pieces?+
Reputable sellers replace missing or damaged pieces free of charge. Always check the replacement policy before you order. A clear, fair policy is one of the strongest signs of a trustworthy seller.